Assessment & Research

Sensitivity and specificity of the autism diagnostic inventory-telephone screening in Spanish.

Vrancic et al. (2002) · Journal of autism and developmental disorders 2002
★ The Verdict

A 20-minute Spanish phone interview validly flags autism risk, cutting clinic time for families.

✓ Read this if BCBAs who assess Spanish-speaking children or run rural intake.
✗ Skip if Practitioners who only serve English-speaking, in-person caseloads.

01Research in Context

01

What this study did

Vrancic et al. (2002) tested a 20-minute Spanish phone screen for autism. They trimmed the full ADI-R interview into a short set of yes-no questions.

Parents answered the ADI-TSS by phone. Later, the same families completed the full ADI-R gold-standard interview. The team compared the two sets of answers.

02

What they found

The phone screener matched the full ADI-R almost every time. Sensitivity and specificity were both high, and different raters gave the same scores.

The screen worked well even when kids had limited Spanish or lived far from clinics.

03

How this fits with other research

Wright et al. (2022) did the same kind of ADI-R tweak for deaf children. Both studies kept the core questions but changed the delivery—phone for Spanish, sign language for deaf kids. Each reached strong accuracy.

Hus et al. (2013) warned that older age and poor language can inflate ADI-R scores. The 2002 phone version side-steps that bias by using fewer, clearer items and skipping parts tied to language level.

Stewart et al. (2018) later validated a Spanish repetitive-behavior scale. Together, these papers build a small toolbox: screen first with the ADI-TSS phone call, then measure repetitive behavior with the Spanish RBS-R if needed.

04

Why it matters

If you serve Spanish-speaking families, you can now screen for autism without long clinic visits. A 20-minute phone call gives you a valid yes-no flag. Use it for early triage, rural outreach, or research intake. When the screen is positive, follow up with full ADI-R or refer for full evaluation.

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Add the ADI-TSS script to your intake packet—offer a free 20-minute Spanish phone screen before scheduling the full ADI-R.

02At a glance

Intervention
not applicable
Design
other
Population
autism spectrum disorder
Finding
strongly positive

03Original abstract

We report on the development in Argentina of a screening questionnaire for autism administered over the telephone. The Autism Diagnostic Inventory-Telephone Screening in Spanish (ADI-TSS) is based on the Autism Diagnostic Interview-Revised (ADI-R), keeping its structure but including fewer questions, which were rephrased to assess them over the telephone. The ADI-TSS went through different versions, with each modification gaining in reliability. The final version of the ADI-TSS could be assessed in 20 to 40 minutes and demonstrated a high validity (using the ADI-R as the diagnostic gold-standard), high intrarater and interrater reliability (as measured with intraclass correlations), and high internal consistency (as measured with Cronbach's alpha). The validity of the ADI-TSS remained high when used by a health-related professional without formal training in the assessment of autistic patients. We believe the ADI-TSS is useful in field research studies as a screening instrument for patients with a potential diagnosis of autism, although future validation studies should include larger samples.

Journal of autism and developmental disorders, 2002 · doi:10.1023/a:1016335003256